
2.3
PREPARATION OF THE COMBUSTION CHAMBER OPENING
(INTO EXISTING CHIMNEY BREAST)
An opening should be constructed to the following dimensions in the existing
chimney breast. See figure 5 below.
Fig. 5
PLEASE NOTE : The opening size as detailed above will require
reducing in size to the product aperture and finishing in a high
temperature plaster finish as detailed in section 2.9
CHECK ANY LOAD BEARING STRUCTURAL ITEMS ARE NOT
AFFECTED BY THE INSTALLATION OF THE PRODUCT. SEE FIGURE
6 OVERPAGE.
If the flue requires lining, an optional extra flue connection plate
assembly can be ordered to assist with the flue connection. This
assembly can be obtained from your local BFM Fires stockist, please
quote part number 1130-127120. Included with this assembly are
fitting instructions.
8
Width = 835mm
Height = 560mm
to 570mm
Depth = 375mm including
debris collection volume
Lintle must
project 150mm
either side of the
opening if
cutting into an
existing chimney
breast